Solve geocaching puzzles
with confidence.
A modern collection of 151+ free tools designed for geocachers. Convert coordinates, decode ciphers, analyze text, and solve mystery caches faster.
Lightning Fast
All tools run instantly in your browser. No waiting for servers, no sign-up required.
100% Private
Your data never leaves your device. No tracking, no cookies, no data collection.
Always Free
Built by geocachers, for geocachers. No premium tiers, no paywalls, ever.
Popular Tools
View all 151 toolsSolve Any Puzzle Type
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Solve puzzles to discover this month's mystery location
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Encode coordinates with ciphers
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The Complete Geocaching Puzzle Toolkit
What is CacheHack?
CacheHack is a free, privacy-focused collection of 151+ tools built specifically for geocaching puzzle enthusiasts. Whether you're trying to decode a Caesar cipher, convert GPS coordinates between formats, or analyze letter frequencies in a cryptogram, we have the right tool for the job.
All tools run entirely in your browser - no data is ever sent to a server, no account is required, and everything works offline once loaded. We built this toolkit because we're geocachers ourselves and wanted something fast, reliable, and free.
For Solvers & Creators
Mystery caches (puzzle caches) are one of geocaching's most rewarding challenges. They require you to decode clues, solve ciphers, and work out hidden coordinates before you can even start the hunt. Our tools help you crack codes faster and with more confidence.
If you're a cache owner, use CacheHack to design engaging puzzles. Encode your coordinates, test that your puzzle is solvable, and explore different cipher types to find the perfect challenge level for your cache.
Popular Use Cases
Coordinate Conversion
DD to DDM, DMS, UTM, MGRS
Cipher Decoding
Caesar, Vigenere, Morse, Base64
Text Analysis
Letter frequency, patterns
Number Systems
Binary, hex, Roman numerals
Frequently Asked Questions
Is CacheHack really free?
Yes, completely free with no hidden costs. There are no premium features, no subscriptions, and no paywalls. All 151 tools are available to everyone.
Do I need to create an account?
No account required. Just visit the site and start using any tool immediately. Your data stays in your browser and is never stored on our servers.
Will this work offline?
Once loaded, most tools work without an internet connection. This is perfect for solving puzzles in the field where signal might be limited.
What ciphers and codes are supported?
We support over 50 cipher types including Caesar (ROT), Vigenere, Atbash, Morse code, Base64, binary, hexadecimal, Polybius square, Pigpen, Playfair, and many more. Plus coordinate tools, text analyzers, and mathematical utilities.
How do I know which tool to use?
Check out our cipher recognition guide to learn how to identify different puzzle types. You can also use the search bar to find tools by name or keyword.